05 - 2-Sep-0812:43 PM IC's P N-Logic EEL 3701 EEL 3701 Menu...

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2-Sep-08—12:43 PM 1 1 University of Florida, EEL 3701 – File 05 © Drs. Schwartz & Arroyo IC's, P-, N-Logic EEL 3701 1 University of Florida, EEL 3701 – File 05 © Drs. Schwartz & Arroyo EEL 3701 Menu • Available ICs in TTL • See also web-site >Pinouts on the Software/Docs page •TTL Gates • Positive-Logic & “N-” Logic Look into my . .. See software/docs on web: Pinouts EEL 3701 2 University of Florida, EEL 3701 – File 05 © Drs. Schwartz & Arroyo EEL 3701 • Available Integrated Circuits (ICs or Chips) in Transistor-Transistor- Logic (TTL) include: > Standard TTL = TTL > Low Power TTL = L-TTL > High Speed TTL = H-TTL > Schottky TTL = S-TTL > Low Power S-TTL = LS-TTL > Advanced S-TTL = AS-TTL > Advanced LS-TTL = ALS-TTL • The data sheets use 74XY or 54XY to represent commercial grade IC’s: X = Series of TTL Y = 2, 3, or 4 digits <Examples> 74LS00, 7400, 74ALS00, 74LS153, etc. • High speed CMOS = HC ; Ex: 74HC00, 74HC02, etc. • HC CMOS is not TTL but uses the same numbering system • TTL uses bipolar transistors. CMOS uses complementary MOS (metal- oxide semiconductor) transistors Integrated Circuits
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2-Sep-08—12:43 PM 2 2 University of Florida, EEL 3701 – File 05 © Drs. Schwartz & Arroyo IC's, P-, N-Logic EEL 3701 3 University of Florida, EEL 3701 – File 05 © Drs. Schwartz & Arroyo EEL 3701 • What is F ? • Input - A wire (no bubble) means it responds to H voltage. (Active-High) - A bubble in a wire means it responds to L Voltage. (Active-Low) • Output - A wire (no bubble) means it produces H voltage. (Active-High) - A bubble in a wire means it produces L Voltage. (Active-Low)
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This note was uploaded on 09/10/2008 for the course EEL 3701 taught by Professor Lam during the Spring '08 term at University of Florida.

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05 - 2-Sep-0812:43 PM IC's P N-Logic EEL 3701 EEL 3701 Menu...

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